GB688904A - Improvements in or relating to television pick-up tubes - Google Patents
Improvements in or relating to television pick-up tubesInfo
- Publication number
- GB688904A GB688904A GB27352/49A GB2735249A GB688904A GB 688904 A GB688904 A GB 688904A GB 27352/49 A GB27352/49 A GB 27352/49A GB 2735249 A GB2735249 A GB 2735249A GB 688904 A GB688904 A GB 688904A
- Authority
- GB
- United Kingdom
- Prior art keywords
- photo
- electrons
- light source
- television pick
- tubes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
- H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
- H01J29/021—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof arrangements for eliminating interferences in the tube
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
- Cathode-Ray Tubes And Fluorescent Screens For Display (AREA)
Abstract
688,904. Television pick-up tubes. THEILE, R., and CATHODEON, Ltd. May 16, 1950 [Oct. 25, 1949], No. 27352/49. Class 39(i) A television pick-up tube of the high velocity scanned type is provided with an auxiliary source of photo-electrons and an electron permeable electrode to accelerate the auxiliary photo-electrons on to the mosaic screen. The figure shows an image iconoscope provided with a photo-electric wall coating 10 illuminated by a light source 11; the light source may be non-uniform and may, for example, be more intense at the bottom than at the top to compensate for "flare". A grid 9 at a potential of 5-8 volts above that of the coating 10 is provided to accelerate electrons on to the mosaic with such velocities as to charge it negatively. The light source 11 may be illuminated intermittently, for example during the frame fly-back periods.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL737300857A NL154166B (en) | 1949-10-25 | SLIDING DEVICE FOR HORIZONTAL MOVEMENT OF OBJECTS. | |
NL76663D NL76663C (en) | 1949-10-25 | ||
GB27352/49A GB688904A (en) | 1949-10-25 | 1949-10-25 | Improvements in or relating to television pick-up tubes |
US163658A US2622226A (en) | 1949-10-25 | 1950-05-23 | Television pickup tube |
FR1019095D FR1019095A (en) | 1949-10-25 | 1950-05-26 | Television tube enhancements |
DEC3310A DE866802C (en) | 1949-10-25 | 1950-10-21 | Image pickup tube arrangement |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB27352/49A GB688904A (en) | 1949-10-25 | 1949-10-25 | Improvements in or relating to television pick-up tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB688904A true GB688904A (en) | 1953-03-18 |
Family
ID=10258206
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27352/49A Expired GB688904A (en) | 1949-10-25 | 1949-10-25 | Improvements in or relating to television pick-up tubes |
Country Status (5)
Country | Link |
---|---|
US (1) | US2622226A (en) |
DE (1) | DE866802C (en) |
FR (1) | FR1019095A (en) |
GB (1) | GB688904A (en) |
NL (2) | NL154166B (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL94738C (en) * | 1950-12-06 | |||
BE511094A (en) * | 1951-05-02 | |||
US2757233A (en) * | 1951-09-29 | 1956-07-31 | Emi Ltd | Electron discharge tube arrangements |
GB722907A (en) * | 1951-10-11 | 1955-02-02 | Pye Ltd | Improvements in or relating to television pick-up tubes, and television apparatus incorporating the same |
US2765422A (en) * | 1951-11-19 | 1956-10-02 | Itt | Television camera tube |
DE948614C (en) * | 1952-11-25 | 1956-09-06 | Fernseh Gmbh | Image storage tubes in which the storage electrode is sprinkled with slow electrons |
US2875360A (en) * | 1953-05-25 | 1959-02-24 | Westinghouse Electric Corp | Image intensifier |
BE529088A (en) * | 1953-05-25 | |||
US2735035A (en) * | 1953-07-08 | 1956-02-14 | Television pick-up tubes and transmitting | |
US2992358A (en) * | 1954-03-03 | 1961-07-11 | Itt | Radiation translating device |
GB799425A (en) * | 1954-07-20 | 1958-08-06 | Emi Ltd | Improvements in or relating to arrangements embodying pick-up tubes |
US2748312A (en) * | 1954-11-19 | 1956-05-29 | Hughes Aircraft Co | Cathode-ray storage tube system |
US3014148A (en) * | 1958-04-21 | 1961-12-19 | United Aircraft Corp | Infrared photo-imaging device |
DE1173513B (en) * | 1962-07-28 | 1964-07-09 | Fernseh Gmbh | Method and arrangement for recording television images with storage tubes |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2360663A (en) * | 1941-02-28 | 1944-10-17 | Rca Corp | Electrical biasing means |
US2324534A (en) * | 1941-09-30 | 1943-07-20 | Bell Telephone Labor Inc | Television transmitter |
US2368884A (en) * | 1942-08-21 | 1945-02-06 | Rca Corp | Television transmitting apparatus |
US2378857A (en) * | 1943-01-16 | 1945-06-19 | Farnsworth Television & Radio | Visual indicating system |
US2451005A (en) * | 1946-08-30 | 1948-10-12 | Rca Corp | Cathode-ray storage tube apparatus and method of operation |
-
0
- NL NL76663D patent/NL76663C/xx active
- NL NL737300857A patent/NL154166B/en unknown
-
1949
- 1949-10-25 GB GB27352/49A patent/GB688904A/en not_active Expired
-
1950
- 1950-05-23 US US163658A patent/US2622226A/en not_active Expired - Lifetime
- 1950-05-26 FR FR1019095D patent/FR1019095A/en not_active Expired
- 1950-10-21 DE DEC3310A patent/DE866802C/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL76663C (en) | |
US2622226A (en) | 1952-12-16 |
DE866802C (en) | 1953-02-12 |
NL154166B (en) | |
FR1019095A (en) | 1953-01-16 |
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